Abstract
In order to achieve good functional performance on surface texture with high processing efficiency, this article proposes a vertical continuous precession polishing method for aspheric lenses based on the analysis of abrasive trajectories on contact region. First of all, by analyzing the relative motion between bonnet tool and workpiece, the motion model of particle trajectories on contact region was established. Then, comparison and analysis of abrasive trajectories with various polishing methods were carried out. Moreover, a vertical continuous precession polishing method for aspheric lenses and related experiments were presented. The results revealed that the texture on contact zone of aspheric lens polished by vertical continuous precession was approximately random and uniform, which is appropriate for polishing curved surfaces continuously. In addition, the contact zone on different polishing spots with various curvatures can be controlled by adaptive algorithm, and the simulated results validated the feasibility of the proposed polishing method for aspheric lenses.
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